Disassembly of old radium sources and conversion of radium sulfate into radium carbonate for subsequent dissolution in acid
Artikel i vetenskaplig tidskrift, 2016
In this work details of safe radium source disassembly which were previously used in brachytherapy are described and different methods for conversion of RaSO4 into aqueous solution are reviewed. The method of choice included three cycles of RaSO4 heating in 1.5 M Na2CO3 up to 85 °C, cooling and subsequent removal of supernatant. X-ray diffraction study showed that the method allows the synthesis of, presumably, amorphous RaCO3, which can be dissolved in mineral acid. Gamma spectrometric measurements showed that most of the initial RaSO4 was converted into solution and that 7 ± 1 % of the initial 210Pb was co-precipitated with RaCO3.
Co-precipitation
Sulfate
Carbonate
Dissolution
Lead
Radium
Författare
Artem Matyskin
Chalmers, Kemi och kemiteknik, Energi och material
Burcak Ebin
Industriell materialåtervinning
Mikhail S Tyumentsev
Industriell materialåtervinning
Christian Ekberg
Industriell materialåtervinning
Chalmers, Kemi och kemiteknik, Energi och material
Stefan Allard
Chalmers, Kemi och kemiteknik, Energi och material
Gunnar Skarnemark
Chalmers, Kemi och kemiteknik, Energi och material
Henrik Ramebäck
Chalmers, Kemi och kemiteknik, Energi och material
Journal of Radioanalytical and Nuclear Chemistry
0236-5731 (ISSN) 1588-2780 (eISSN)
Vol. 310 2 589-595Ämneskategorier
Oorganisk kemi
Analytisk kemi
Drivkrafter
Hållbar utveckling
Styrkeområden
Energi
Fundament
Grundläggande vetenskaper
DOI
10.1007/s10967-016-4927-x